Keyboard problems, help!

My LG X power keyboard just keeps having two problems: lagging and caps lock problems. The lag happens when I press any key on the keyboard (sometimes causing a typed word to disappear when I type fast), and the caps lock occasionally turns itself on even when autocorrect and auto-capitalization are both disabled. The keyboard also turns Shift back on if I type a word beginning with a capital letter and erase it. Please help!

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